]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/hevc.c
ffv1: Pass correct pointers to av_free()
[ffmpeg] / libavcodec / hevc.c
index 9c5cc50f0cf5d698071d7fce399e0657c88e33df..4c06fb8d620ab5ff886ddef0939178e6e5495a58 100644 (file)
@@ -251,10 +251,10 @@ static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
     uint8_t luma_weight_l1_flag[16];
     uint8_t chroma_weight_l1_flag[16];
 
-    s->sh.luma_log2_weight_denom = get_ue_golomb_long(gb);
+    s->sh.luma_log2_weight_denom = av_clip(get_ue_golomb_long(gb), 0, 7);
     if (s->sps->chroma_format_idc != 0) {
         int delta = get_se_golomb(gb);
-        s->sh.chroma_log2_weight_denom = av_clip_c(s->sh.luma_log2_weight_denom + delta, 0, 7);
+        s->sh.chroma_log2_weight_denom = av_clip(s->sh.luma_log2_weight_denom + delta, 0, 7);
     }
 
     for (i = 0; i < s->sh.nb_refs[L0]; i++) {
@@ -282,7 +282,7 @@ static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
                 int delta_chroma_weight_l0 = get_se_golomb(gb);
                 int delta_chroma_offset_l0 = get_se_golomb(gb);
                 s->sh.chroma_weight_l0[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l0;
-                s->sh.chroma_offset_l0[i][j] = av_clip_c((delta_chroma_offset_l0 - ((128 * s->sh.chroma_weight_l0[i][j])
+                s->sh.chroma_offset_l0[i][j] = av_clip((delta_chroma_offset_l0 - ((128 * s->sh.chroma_weight_l0[i][j])
                                                                                     >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
             }
         } else {
@@ -318,7 +318,7 @@ static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
                     int delta_chroma_weight_l1 = get_se_golomb(gb);
                     int delta_chroma_offset_l1 = get_se_golomb(gb);
                     s->sh.chroma_weight_l1[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l1;
-                    s->sh.chroma_offset_l1[i][j] = av_clip_c((delta_chroma_offset_l1 - ((128 * s->sh.chroma_weight_l1[i][j])
+                    s->sh.chroma_offset_l1[i][j] = av_clip((delta_chroma_offset_l1 - ((128 * s->sh.chroma_weight_l1[i][j])
                                                                                         >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
                 }
             } else {
@@ -383,46 +383,84 @@ static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
     return 0;
 }
 
-static int set_sps(HEVCContext *s, const HEVCSPS *sps)
+static void export_stream_params(AVCodecContext *avctx,
+                                 const HEVCContext *s, const HEVCSPS *sps)
 {
-    int ret;
+    const HEVCVPS *vps = (const HEVCVPS*)s->vps_list[sps->vps_id]->data;
     unsigned int num = 0, den = 0;
 
-    pic_arrays_free(s);
-    ret = pic_arrays_init(s, sps);
-    if (ret < 0)
-        goto fail;
-
-    s->avctx->coded_width         = sps->width;
-    s->avctx->coded_height        = sps->height;
-    s->avctx->width               = sps->output_width;
-    s->avctx->height              = sps->output_height;
-    s->avctx->pix_fmt             = sps->pix_fmt;
-    s->avctx->has_b_frames        = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
+    avctx->pix_fmt             = sps->pix_fmt;
+    avctx->coded_width         = sps->width;
+    avctx->coded_height        = sps->height;
+    avctx->width               = sps->output_width;
+    avctx->height              = sps->output_height;
+    avctx->has_b_frames        = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
+    avctx->profile             = sps->ptl.general_ptl.profile_idc;
+    avctx->level               = sps->ptl.general_ptl.level_idc;
 
-    ff_set_sar(s->avctx, sps->vui.sar);
+    ff_set_sar(avctx, sps->vui.sar);
 
     if (sps->vui.video_signal_type_present_flag)
-        s->avctx->color_range = sps->vui.video_full_range_flag ? AVCOL_RANGE_JPEG
-                                                               : AVCOL_RANGE_MPEG;
+        avctx->color_range = sps->vui.video_full_range_flag ? AVCOL_RANGE_JPEG
+                                                            : AVCOL_RANGE_MPEG;
     else
-        s->avctx->color_range = AVCOL_RANGE_MPEG;
+        avctx->color_range = AVCOL_RANGE_MPEG;
 
     if (sps->vui.colour_description_present_flag) {
-        s->avctx->color_primaries = sps->vui.colour_primaries;
-        s->avctx->color_trc       = sps->vui.transfer_characteristic;
-        s->avctx->colorspace      = sps->vui.matrix_coeffs;
+        avctx->color_primaries = sps->vui.colour_primaries;
+        avctx->color_trc       = sps->vui.transfer_characteristic;
+        avctx->colorspace      = sps->vui.matrix_coeffs;
     } else {
-        s->avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
-        s->avctx->color_trc       = AVCOL_TRC_UNSPECIFIED;
-        s->avctx->colorspace      = AVCOL_SPC_UNSPECIFIED;
+        avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
+        avctx->color_trc       = AVCOL_TRC_UNSPECIFIED;
+        avctx->colorspace      = AVCOL_SPC_UNSPECIFIED;
+    }
+
+    if (vps->vps_timing_info_present_flag) {
+        num = vps->vps_num_units_in_tick;
+        den = vps->vps_time_scale;
+    } else if (sps->vui.vui_timing_info_present_flag) {
+        num = sps->vui.vui_num_units_in_tick;
+        den = sps->vui.vui_time_scale;
+    }
+
+    if (num != 0 && den != 0)
+        av_reduce(&avctx->framerate.den, &avctx->framerate.num,
+                  num, den, 1 << 30);
+}
+
+static int set_sps(HEVCContext *s, const HEVCSPS *sps)
+{
+    #define HWACCEL_MAX (CONFIG_HEVC_DXVA2_HWACCEL)
+    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
+    int ret;
+
+    export_stream_params(s->avctx, s, sps);
+
+    pic_arrays_free(s);
+    ret = pic_arrays_init(s, sps);
+    if (ret < 0)
+        goto fail;
+
+    if (sps->pix_fmt == AV_PIX_FMT_YUV420P || sps->pix_fmt == AV_PIX_FMT_YUVJ420P) {
+#if CONFIG_HEVC_DXVA2_HWACCEL
+        *fmt++ = AV_PIX_FMT_DXVA2_VLD;
+#endif
     }
 
+    *fmt++ = sps->pix_fmt;
+    *fmt = AV_PIX_FMT_NONE;
+
+    ret = ff_get_format(s->avctx, pix_fmts);
+    if (ret < 0)
+        goto fail;
+    s->avctx->pix_fmt = ret;
+
     ff_hevc_pred_init(&s->hpc,     sps->bit_depth);
     ff_hevc_dsp_init (&s->hevcdsp, sps->bit_depth);
     ff_videodsp_init (&s->vdsp,    sps->bit_depth);
 
-    if (sps->sao_enabled) {
+    if (sps->sao_enabled && !s->avctx->hwaccel) {
         av_frame_unref(s->tmp_frame);
         ret = ff_get_buffer(s->avctx, s->tmp_frame, AV_GET_BUFFER_FLAG_REF);
         if (ret < 0)
@@ -433,18 +471,6 @@ static int set_sps(HEVCContext *s, const HEVCSPS *sps)
     s->sps = sps;
     s->vps = (HEVCVPS*) s->vps_list[s->sps->vps_id]->data;
 
-    if (s->vps->vps_timing_info_present_flag) {
-        num = s->vps->vps_num_units_in_tick;
-        den = s->vps->vps_time_scale;
-    } else if (sps->vui.vui_timing_info_present_flag) {
-        num = sps->vui.vui_num_units_in_tick;
-        den = sps->vui.vui_time_scale;
-    }
-
-    if (num != 0 && den != 0)
-        av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
-                  num, den, 1 << 30);
-
     return 0;
 
 fail:
@@ -494,9 +520,6 @@ static int hls_slice_header(HEVCContext *s)
         s->max_ra     = INT_MAX;
     }
 
-    s->avctx->profile = s->sps->ptl.general_ptl.profile_idc;
-    s->avctx->level   = s->sps->ptl.general_ptl.level_idc;
-
     sh->dependent_slice_segment_flag = 0;
     if (!sh->first_slice_in_pic_flag) {
         int slice_address_length;
@@ -552,7 +575,7 @@ static int hls_slice_header(HEVCContext *s)
             sh->colour_plane_id = get_bits(gb, 2);
 
         if (!IS_IDR(s)) {
-            int short_term_ref_pic_set_sps_flag, poc;
+            int poc;
 
             sh->pic_order_cnt_lsb = get_bits(gb, s->sps->log2_max_poc_lsb);
             poc = ff_hevc_compute_poc(s, sh->pic_order_cnt_lsb);
@@ -565,12 +588,14 @@ static int hls_slice_header(HEVCContext *s)
             }
             s->poc = poc;
 
-            short_term_ref_pic_set_sps_flag = get_bits1(gb);
-            if (!short_term_ref_pic_set_sps_flag) {
+            sh->short_term_ref_pic_set_sps_flag = get_bits1(gb);
+            if (!sh->short_term_ref_pic_set_sps_flag) {
+                int pos = get_bits_left(gb);
                 ret = ff_hevc_decode_short_term_rps(s, &sh->slice_rps, s->sps, 1);
                 if (ret < 0)
                     return ret;
 
+                sh->short_term_ref_pic_set_size = pos - get_bits_left(gb);
                 sh->short_term_rps = &sh->slice_rps;
             } else {
                 int numbits, rps_idx;
@@ -947,7 +972,7 @@ static void hls_residual_coding(HEVCContext *s, int x0, int y0,
             else
                 offset = s->pps->cr_qp_offset + s->sh.slice_cr_qp_offset;
 
-            qp_i = av_clip_c(qp_y + offset, -s->sps->qp_bd_offset, 57);
+            qp_i = av_clip(qp_y + offset, -s->sps->qp_bd_offset, 57);
             if (qp_i < 30)
                 qp = qp_i;
             else if (qp_i > 43)
@@ -1233,7 +1258,7 @@ static void hls_residual_coding(HEVCContext *s, int x0, int y0,
 static int hls_transform_unit(HEVCContext *s, int x0, int y0,
                               int xBase, int yBase, int cb_xBase, int cb_yBase,
                               int log2_cb_size, int log2_trafo_size,
-                              int trafo_depth, int blk_idx)
+                              int blk_idx, int cbf_luma, int cbf_cb, int cbf_cr)
 {
     HEVCLocalContext *lc = &s->HEVClc;
 
@@ -1256,9 +1281,7 @@ static int hls_transform_unit(HEVCContext *s, int x0, int y0,
         }
     }
 
-    if (lc->tt.cbf_luma ||
-        SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
-        SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
+    if (cbf_luma || cbf_cb || cbf_cr) {
         int scan_idx   = SCAN_DIAG;
         int scan_idx_c = SCAN_DIAG;
 
@@ -1301,17 +1324,17 @@ static int hls_transform_unit(HEVCContext *s, int x0, int y0,
             }
         }
 
-        if (lc->tt.cbf_luma)
+        if (cbf_luma)
             hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
         if (log2_trafo_size > 2) {
-            if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0))
+            if (cbf_cb)
                 hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 1);
-            if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0))
+            if (cbf_cr)
                 hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 2);
         } else if (blk_idx == 3) {
-            if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], xBase, yBase))
+            if (cbf_cb)
                 hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 1);
-            if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], xBase, yBase))
+            if (cbf_cr)
                 hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 2);
         }
     }
@@ -1336,22 +1359,13 @@ static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_si
 static int hls_transform_tree(HEVCContext *s, int x0, int y0,
                               int xBase, int yBase, int cb_xBase, int cb_yBase,
                               int log2_cb_size, int log2_trafo_size,
-                              int trafo_depth, int blk_idx)
+                              int trafo_depth, int blk_idx,
+                              int cbf_cb, int cbf_cr)
 {
     HEVCLocalContext *lc = &s->HEVClc;
     uint8_t split_transform_flag;
     int ret;
 
-    if (trafo_depth > 0 && log2_trafo_size == 2) {
-        SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
-            SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase);
-        SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
-            SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase);
-    } else {
-        SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
-        SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) = 0;
-    }
-
     if (lc->cu.intra_split_flag) {
         if (trafo_depth == 1)
             lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
@@ -1359,37 +1373,30 @@ static int hls_transform_tree(HEVCContext *s, int x0, int y0,
         lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[0];
     }
 
-    lc->tt.cbf_luma = 1;
-
-    lc->tt.inter_split_flag = s->sps->max_transform_hierarchy_depth_inter == 0 &&
-                              lc->cu.pred_mode == MODE_INTER &&
-                              lc->cu.part_mode != PART_2Nx2N &&
-                              trafo_depth == 0;
-
     if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
         log2_trafo_size >  s->sps->log2_min_tb_size    &&
         trafo_depth     < lc->cu.max_trafo_depth       &&
         !(lc->cu.intra_split_flag && trafo_depth == 0)) {
         split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
     } else {
+        int inter_split = s->sps->max_transform_hierarchy_depth_inter == 0 &&
+                          lc->cu.pred_mode == MODE_INTER &&
+                          lc->cu.part_mode != PART_2Nx2N &&
+                          trafo_depth == 0;
+
         split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
                                (lc->cu.intra_split_flag && trafo_depth == 0) ||
-                               lc->tt.inter_split_flag;
+                               inter_split;
     }
 
-    if (log2_trafo_size > 2) {
-        if (trafo_depth == 0 ||
-            SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase)) {
-            SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
-                ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
-        }
-
-        if (trafo_depth == 0 ||
-            SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase)) {
-            SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
-                ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
-        }
-    }
+    if (log2_trafo_size > 2 && (trafo_depth == 0 || cbf_cb))
+        cbf_cb = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
+    else if (log2_trafo_size > 2 || trafo_depth == 0)
+        cbf_cb = 0;
+    if (log2_trafo_size > 2 && (trafo_depth == 0 || cbf_cr))
+        cbf_cr = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
+    else if (log2_trafo_size > 2 || trafo_depth == 0)
+        cbf_cr = 0;
 
     if (split_transform_flag) {
         const int trafo_size_split = 1 << (log2_trafo_size - 1);
@@ -1399,7 +1406,8 @@ static int hls_transform_tree(HEVCContext *s, int x0, int y0,
 #define SUBDIVIDE(x, y, idx)                                                    \
 do {                                                                            \
     ret = hls_transform_tree(s, x, y, x0, y0, cb_xBase, cb_yBase, log2_cb_size, \
-                             log2_trafo_size - 1, trafo_depth + 1, idx);        \
+                             log2_trafo_size - 1, trafo_depth + 1, idx,         \
+                             cbf_cb, cbf_cr);                                   \
     if (ret < 0)                                                                \
         return ret;                                                             \
 } while (0)
@@ -1414,20 +1422,19 @@ do {
         int min_tu_size      = 1 << s->sps->log2_min_tb_size;
         int log2_min_tu_size = s->sps->log2_min_tb_size;
         int min_tu_width     = s->sps->min_tb_width;
+        int cbf_luma         = 1;
 
         if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
-            SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
-            SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
-            lc->tt.cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
-        }
+            cbf_cb || cbf_cr)
+            cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
 
         ret = hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
-                                 log2_cb_size, log2_trafo_size, trafo_depth,
-                                 blk_idx);
+                                 log2_cb_size, log2_trafo_size,
+                                 blk_idx, cbf_luma, cbf_cb, cbf_cr);
         if (ret < 0)
             return ret;
         // TODO: store cbf_luma somewhere else
-        if (lc->tt.cbf_luma) {
+        if (cbf_luma) {
             int i, j;
             for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
                 for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
@@ -1437,9 +1444,7 @@ do {
                 }
         }
         if (!s->sh.disable_deblocking_filter_flag) {
-            ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size,
-                                                  lc->slice_or_tiles_up_boundary,
-                                                  lc->slice_or_tiles_left_boundary);
+            ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size);
             if (s->pps->transquant_bypass_enable_flag &&
                 lc->cu.cu_transquant_bypass_flag)
                 set_deblocking_bypass(s, x0, y0, log2_trafo_size);
@@ -1465,9 +1470,8 @@ static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
     const uint8_t *pcm = skip_bytes(&lc->cc, (length + 7) >> 3);
     int ret;
 
-    ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,
-                                          lc->slice_or_tiles_up_boundary,
-                                          lc->slice_or_tiles_left_boundary);
+    if (!s->sh.disable_deblocking_filter_flag)
+        ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
 
     ret = init_get_bits(&gb, pcm, length);
     if (ret < 0)
@@ -1642,6 +1646,50 @@ static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
     ff_thread_await_progress(&ref->tf, y, 0);
 }
 
+static void hevc_luma_mv_mpv_mode(HEVCContext *s, int x0, int y0, int nPbW,
+                                  int nPbH, int log2_cb_size, int part_idx,
+                                  int merge_idx, MvField *mv)
+{
+    HEVCLocalContext *lc             = &s->HEVClc;
+    enum InterPredIdc inter_pred_idc = PRED_L0;
+    int mvp_flag;
+
+    ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
+    if (s->sh.slice_type == B_SLICE)
+        inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
+
+    if (inter_pred_idc != PRED_L1) {
+        if (s->sh.nb_refs[L0])
+            mv->ref_idx[0]= ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
+
+        mv->pred_flag[0] = 1;
+        hls_mvd_coding(s, x0, y0, 0);
+        mvp_flag = ff_hevc_mvp_lx_flag_decode(s);
+        ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+                                 part_idx, merge_idx, mv, mvp_flag, 0);
+        mv->mv[0].x += lc->pu.mvd.x;
+        mv->mv[0].y += lc->pu.mvd.y;
+    }
+
+    if (inter_pred_idc != PRED_L0) {
+        if (s->sh.nb_refs[L1])
+            mv->ref_idx[1]= ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
+
+        if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
+            AV_ZERO32(&lc->pu.mvd);
+        } else {
+            hls_mvd_coding(s, x0, y0, 1);
+        }
+
+        mv->pred_flag[1] = 1;
+        mvp_flag = ff_hevc_mvp_lx_flag_decode(s);
+        ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+                                 part_idx, merge_idx, mv, mvp_flag, 1);
+        mv->mv[1].x += lc->pu.mvd.x;
+        mv->mv[1].y += lc->pu.mvd.y;
+    }
+}
+
 static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
                                 int nPbW, int nPbH,
                                 int log2_cb_size, int partIdx)
@@ -1668,95 +1716,33 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
     int min_cb_width     = s->sps->min_cb_width;
     int x_cb             = x0 >> log2_min_cb_size;
     int y_cb             = y0 >> log2_min_cb_size;
-    int ref_idx[2];
-    int mvp_flag[2];
     int x_pu, y_pu;
     int i, j;
 
-    if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
+    int skip_flag = SAMPLE_CTB(s->skip_flag, x_cb, y_cb);
+
+    if (!skip_flag)
+        lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
+
+    if (skip_flag || lc->pu.merge_flag) {
         if (s->sh.max_num_merge_cand > 1)
             merge_idx = ff_hevc_merge_idx_decode(s);
         else
             merge_idx = 0;
 
-        ff_hevc_luma_mv_merge_mode(s, x0, y0,
-                                   1 << log2_cb_size,
-                                   1 << log2_cb_size,
-                                   log2_cb_size, partIdx,
-                                   merge_idx, &current_mv);
-        x_pu = x0 >> s->sps->log2_min_pu_size;
-        y_pu = y0 >> s->sps->log2_min_pu_size;
-
-        for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
-            for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
-                tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
-    } else { /* MODE_INTER */
-        lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
-        if (lc->pu.merge_flag) {
-            if (s->sh.max_num_merge_cand > 1)
-                merge_idx = ff_hevc_merge_idx_decode(s);
-            else
-                merge_idx = 0;
-
-            ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
-                                       partIdx, merge_idx, &current_mv);
-            x_pu = x0 >> s->sps->log2_min_pu_size;
-            y_pu = y0 >> s->sps->log2_min_pu_size;
-
-            for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
-                for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
-                    tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
-        } else {
-            enum InterPredIdc inter_pred_idc = PRED_L0;
-            ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
-            if (s->sh.slice_type == B_SLICE)
-                inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
-
-            if (inter_pred_idc != PRED_L1) {
-                if (s->sh.nb_refs[L0]) {
-                    ref_idx[0] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
-                    current_mv.ref_idx[0] = ref_idx[0];
-                }
-                current_mv.pred_flag[0] = 1;
-                hls_mvd_coding(s, x0, y0, 0);
-                mvp_flag[0] = ff_hevc_mvp_lx_flag_decode(s);
-                ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
-                                         partIdx, merge_idx, &current_mv,
-                                         mvp_flag[0], 0);
-                current_mv.mv[0].x += lc->pu.mvd.x;
-                current_mv.mv[0].y += lc->pu.mvd.y;
-            }
-
-            if (inter_pred_idc != PRED_L0) {
-                if (s->sh.nb_refs[L1]) {
-                    ref_idx[1] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
-                    current_mv.ref_idx[1] = ref_idx[1];
-                }
-
-                if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
-                    lc->pu.mvd.x = 0;
-                    lc->pu.mvd.y = 0;
-                } else {
-                    hls_mvd_coding(s, x0, y0, 1);
-                }
-
-                current_mv.pred_flag[1] = 1;
-                mvp_flag[1] = ff_hevc_mvp_lx_flag_decode(s);
-                ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
-                                         partIdx, merge_idx, &current_mv,
-                                         mvp_flag[1], 1);
-                current_mv.mv[1].x += lc->pu.mvd.x;
-                current_mv.mv[1].y += lc->pu.mvd.y;
-            }
+        ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+                                   partIdx, merge_idx, &current_mv);
+    } else {
+        hevc_luma_mv_mpv_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
+                              partIdx, merge_idx, &current_mv);
+    }
 
-            x_pu = x0 >> s->sps->log2_min_pu_size;
-            y_pu = y0 >> s->sps->log2_min_pu_size;
+    x_pu = x0 >> s->sps->log2_min_pu_size;
+    y_pu = y0 >> s->sps->log2_min_pu_size;
 
-            for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
-                for(j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
-                    tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
-        }
-    }
+    for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
+        for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
+            tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
 
     if (current_mv.pred_flag[0]) {
         ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
@@ -1811,9 +1797,6 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
         DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
         DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
 
-        if (!ref1)
-            return;
-
         luma_mc(s, tmp, tmpstride, ref1->frame,
                 &current_mv.mv[1], x0, y0, nPbW, nPbH);
 
@@ -1850,11 +1833,6 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
         DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
         DECLARE_ALIGNED(16, int16_t, tmp3[MAX_PB_SIZE * MAX_PB_SIZE]);
         DECLARE_ALIGNED(16, int16_t, tmp4[MAX_PB_SIZE * MAX_PB_SIZE]);
-        HEVCFrame *ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
-        HEVCFrame *ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
-
-        if (!ref0 || !ref1)
-            return;
 
         luma_mc(s, tmp, tmpstride, ref0->frame,
                 &current_mv.mv[0], x0, y0, nPbW, nPbH);
@@ -2082,11 +2060,9 @@ static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
 
     lc->cu.x                = x0;
     lc->cu.y                = y0;
-    lc->cu.rqt_root_cbf     = 1;
     lc->cu.pred_mode        = MODE_INTRA;
     lc->cu.part_mode        = PART_2Nx2N;
     lc->cu.intra_split_flag = 0;
-    lc->cu.pcm_flag         = 0;
 
     SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
     for (x = 0; x < 4; x++)
@@ -2101,7 +2077,6 @@ static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
     if (s->sh.slice_type != I_SLICE) {
         uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
 
-        lc->cu.pred_mode = MODE_SKIP;
         x = y_cb * min_cb_width + x_cb;
         for (y = 0; y < length; y++) {
             memset(&s->skip_flag[x], skip_flag, length);
@@ -2115,10 +2090,10 @@ static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
         intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
 
         if (!s->sh.disable_deblocking_filter_flag)
-            ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,
-                                                  lc->slice_or_tiles_up_boundary,
-                                                  lc->slice_or_tiles_left_boundary);
+            ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
     } else {
+        int pcm_flag = 0;
+
         if (s->sh.slice_type != I_SLICE)
             lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
         if (lc->cu.pred_mode != MODE_INTRA ||
@@ -2132,9 +2107,9 @@ static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
             if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
                 log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
                 log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
-                lc->cu.pcm_flag = ff_hevc_pcm_flag_decode(s);
+                pcm_flag = ff_hevc_pcm_flag_decode(s);
             }
-            if (lc->cu.pcm_flag) {
+            if (pcm_flag) {
                 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
                 ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
                 if (s->sps->pcm.loop_filter_disable_flag)
@@ -2184,25 +2159,25 @@ static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
             }
         }
 
-        if (!lc->cu.pcm_flag) {
+        if (!pcm_flag) {
+            int rqt_root_cbf = 1;
+
             if (lc->cu.pred_mode != MODE_INTRA &&
                 !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
-                lc->cu.rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
+                rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
             }
-            if (lc->cu.rqt_root_cbf) {
+            if (rqt_root_cbf) {
                 lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
                                          s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
                                          s->sps->max_transform_hierarchy_depth_inter;
                 ret = hls_transform_tree(s, x0, y0, x0, y0, x0, y0,
                                          log2_cb_size,
-                                         log2_cb_size, 0, 0);
+                                         log2_cb_size, 0, 0, 0, 0);
                 if (ret < 0)
                     return ret;
             } else {
                 if (!s->sh.disable_deblocking_filter_flag)
-                    ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size,
-                                                          lc->slice_or_tiles_up_boundary,
-                                                          lc->slice_or_tiles_left_boundary);
+                    ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
             }
         }
     }
@@ -2280,9 +2255,6 @@ static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
     int ctb_addr_rs       = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
     int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
 
-    int tile_left_boundary, tile_up_boundary;
-    int slice_left_boundary, slice_up_boundary;
-
     s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
 
     if (s->pps->entropy_coding_sync_enabled_flag) {
@@ -2302,25 +2274,25 @@ static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
 
     lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
 
+    lc->boundary_flags = 0;
     if (s->pps->tiles_enabled_flag) {
-        tile_left_boundary  = x_ctb > 0 &&
-                              s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - 1]];
-        slice_left_boundary = x_ctb > 0 &&
-                              s->tab_slice_address[ctb_addr_rs] == s->tab_slice_address[ctb_addr_rs - 1];
-        tile_up_boundary  = y_ctb > 0 &&
-                            s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
-        slice_up_boundary = y_ctb > 0 &&
-                            s->tab_slice_address[ctb_addr_rs] == s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width];
+        if (x_ctb > 0 && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - 1]])
+            lc->boundary_flags |= BOUNDARY_LEFT_TILE;
+        if (x_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1])
+            lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
+        if (y_ctb > 0 && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]])
+            lc->boundary_flags |= BOUNDARY_UPPER_TILE;
+        if (y_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width])
+            lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
     } else {
-        tile_left_boundary  =
-        tile_up_boundary    = 1;
-        slice_left_boundary = ctb_addr_in_slice > 0;
-        slice_up_boundary   = ctb_addr_in_slice >= s->sps->ctb_width;
-    }
-    lc->slice_or_tiles_left_boundary = (!slice_left_boundary) + (!tile_left_boundary << 1);
-    lc->slice_or_tiles_up_boundary   = (!slice_up_boundary + (!tile_up_boundary << 1));
-    lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && tile_left_boundary);
-    lc->ctb_up_flag   = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && tile_up_boundary);
+        if (!ctb_addr_in_slice > 0)
+            lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
+        if (ctb_addr_in_slice < s->sps->ctb_width)
+            lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
+    }
+
+    lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && !(lc->boundary_flags & BOUNDARY_LEFT_TILE));
+    lc->ctb_up_flag   = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !(lc->boundary_flags & BOUNDARY_UPPER_TILE));
     lc->ctb_up_right_flag = ((y_ctb > 0)  && (ctb_addr_in_slice+1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs+1 - s->sps->ctb_width]]));
     lc->ctb_up_left_flag = ((x_ctb > 0) && (y_ctb > 0)  && (ctb_addr_in_slice-1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1 - s->sps->ctb_width]]));
 }
@@ -2462,7 +2434,7 @@ static int set_side_data(HEVCContext *s)
 
         av_display_rotation_set((int32_t *)rotation->data, angle);
         av_display_matrix_flip((int32_t *)rotation->data,
-                               s->sei_vflip, s->sei_hflip);
+                               s->sei_hflip, s->sei_vflip);
     }
 
     return 0;
@@ -2513,18 +2485,18 @@ static int hevc_frame_start(HEVCContext *s)
 
 fail:
     if (s->ref)
-        ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
+        ff_hevc_unref_frame(s, s->ref, ~0);
     s->ref = NULL;
     return ret;
 }
 
-static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
+static int decode_nal_unit(HEVCContext *s, const HEVCNAL *nal)
 {
     HEVCLocalContext *lc = &s->HEVClc;
     GetBitContext *gb    = &lc->gb;
     int ctb_addr_ts, ret;
 
-    ret = init_get_bits8(gb, nal, length);
+    ret = init_get_bits8(gb, nal->data, nal->size);
     if (ret < 0)
         return ret;
 
@@ -2622,18 +2594,30 @@ static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
             }
         }
 
-        ctb_addr_ts = hls_slice_data(s);
-        if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
-            s->is_decoded = 1;
-            if ((s->pps->transquant_bypass_enable_flag ||
-                 (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
-                s->sps->sao_enabled)
-                restore_tqb_pixels(s);
+        if (s->sh.first_slice_in_pic_flag && s->avctx->hwaccel) {
+            ret = s->avctx->hwaccel->start_frame(s->avctx, NULL, 0);
+            if (ret < 0)
+                goto fail;
         }
 
-        if (ctb_addr_ts < 0) {
-            ret = ctb_addr_ts;
-            goto fail;
+        if (s->avctx->hwaccel) {
+            ret = s->avctx->hwaccel->decode_slice(s->avctx, nal->raw_data, nal->raw_size);
+            if (ret < 0)
+                goto fail;
+        } else {
+            ctb_addr_ts = hls_slice_data(s);
+            if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
+                s->is_decoded = 1;
+                if ((s->pps->transquant_bypass_enable_flag ||
+                     (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
+                    s->sps->sao_enabled)
+                    restore_tqb_pixels(s);
+            }
+
+            if (ctb_addr_ts < 0) {
+                ret = ctb_addr_ts;
+                goto fail;
+            }
         }
         break;
     case NAL_EOS_NUT:
@@ -2710,8 +2694,10 @@ static int extract_rbsp(const uint8_t *src, int length,
 #endif /* HAVE_FAST_UNALIGNED */
 
     if (i >= length - 1) { // no escaped 0
-        nal->data = src;
-        nal->size = length;
+        nal->data     =
+        nal->raw_data = src;
+        nal->size     =
+        nal->raw_size = length;
         return length;
     }
 
@@ -2750,6 +2736,8 @@ nsc:
 
     nal->data = dst;
     nal->size = di;
+    nal->raw_data = src;
+    nal->raw_size = si;
     return si;
 }
 
@@ -2830,7 +2818,7 @@ static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
 
     /* parse the NAL units */
     for (i = 0; i < s->nb_nals; i++) {
-        int ret = decode_nal_unit(s, s->nals[i].data, s->nals[i].size);
+        int ret = decode_nal_unit(s, &s->nals[i]);
         if (ret < 0) {
             av_log(s->avctx, AV_LOG_WARNING,
                    "Error parsing NAL unit #%d.\n", i);
@@ -2938,13 +2926,19 @@ static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
     if (ret < 0)
         return ret;
 
-    /* verify the SEI checksum */
-    if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
-        s->is_md5) {
-        ret = verify_md5(s, s->ref->frame);
-        if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
-            ff_hevc_unref_frame(s, s->ref, ~0);
-            return ret;
+    if (avctx->hwaccel) {
+        if (s->ref && avctx->hwaccel->end_frame(avctx) < 0)
+            av_log(avctx, AV_LOG_ERROR,
+                   "hardware accelerator failed to decode picture\n");
+    } else {
+        /* verify the SEI checksum */
+        if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
+            s->is_md5) {
+            ret = verify_md5(s, s->ref->frame);
+            if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
+                ff_hevc_unref_frame(s, s->ref, ~0);
+                return ret;
+            }
         }
     }
     s->is_md5 = 0;
@@ -2988,6 +2982,13 @@ static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
     dst->flags      = src->flags;
     dst->sequence   = src->sequence;
 
+    if (src->hwaccel_picture_private) {
+        dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
+        if (!dst->hwaccel_priv_buf)
+            goto fail;
+        dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
+    }
+
     return 0;
 fail:
     ff_hevc_unref_frame(s, dst, ~0);
@@ -3137,7 +3138,7 @@ static int hevc_decode_extradata(HEVCContext *s)
 {
     AVCodecContext *avctx = s->avctx;
     GetByteContext gb;
-    int ret;
+    int ret, i;
 
     bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
 
@@ -3194,6 +3195,16 @@ static int hevc_decode_extradata(HEVCContext *s)
         if (ret < 0)
             return ret;
     }
+
+    /* export stream parameters from the first SPS */
+    for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
+        if (s->sps_list[i]) {
+            const HEVCSPS *sps = (const HEVCSPS*)s->sps_list[i]->data;
+            export_stream_params(s->avctx, s, sps);
+            break;
+        }
+    }
+
     return 0;
 }